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All results from a given calculation for C4H7NO (Oxazole, 4,5-dihydro-2-methyl-)

using model chemistry: B3LYP/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3LYP/CEP-121G*
 hartrees
Energy at 0K-52.697573
Energy at 298.15K-52.706392
Nuclear repulsion energy129.474764
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B3LYP/CEP-121G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3151 3055 11.43      
2 A 3048 2955 70.21      
3 A 3037 2944 16.91      
4 A 3029 2936 59.58      
5 A 1711 1659 146.52      
6 A 1535 1488 1.41      
7 A 1512 1466 0.22      
8 A 1489 1443 11.63      
9 A 1420 1376 29.24      
10 A 1375 1333 12.34      
11 A 1337 1296 18.05      
12 A 1233 1195 113.25      
13 A 1075 1042 0.98      
14 A 999 969 100.17      
15 A 968 938 0.11      
16 A 937 908 30.97      
17 A 895 867 22.03      
18 A 745 722 5.49      
19 A 647 627 2.26      
20 A 343 332 5.84      
21 A 3099 3004 65.39      
22 A 3096 3001 15.88      
23 A 3059 2965 13.06      
24 A 1485 1440 9.29      
25 A 1241 1203 0.10      
26 A 1211 1174 1.61      
27 A 1118 1084 0.01      
28 A 1059 1027 1.55      
29 A 822 797 0.40      
30 A 582 564 4.56      
31 A 233 226 10.69      
32 A 135 131 1.07      
33 A 60 59 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 23841.1 cm-1
Scaled (by 0.9694) Zero Point Vibrational Energy (zpe) 23111.6 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B3LYP/CEP-121G*
ABC
0.25423 0.11223 0.08145

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.370 2.145 0.000
C2 0.507 -1.528 0.000
C3 -1.035 -1.278 0.000
N4 -1.183 0.197 0.000
O5 1.076 -0.182 0.000
C6 0.000 0.685 0.000
H7 0.870 -2.049 0.894
H8 0.870 -2.049 -0.894
H9 -1.528 -1.701 0.885
H10 -1.528 -1.701 -0.885
H11 0.974 2.381 0.885
H12 0.974 2.381 -0.885
H13 -0.539 2.750 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.67493.69982.49112.43181.50594.31694.31694.37874.37871.09701.09701.0920
C23.67491.56262.41491.46072.27001.09621.09622.22652.22654.03504.03504.4039
C33.69981.56261.48232.37872.21912.24102.24101.09801.09804.26724.26724.0586
N42.49112.41491.48232.29091.27983.17133.17132.12222.12223.19473.19472.6333
O52.43181.46072.37872.29091.38212.07992.07993.14203.14202.71412.71413.3478
C61.50592.27002.21911.27981.38213.00493.00492.96822.96822.14682.14682.1344
H74.31691.09622.24103.17132.07993.00491.78702.42323.00604.43174.77525.0809
H84.31691.09622.24103.17132.07993.00491.78703.00602.42324.77524.43175.0809
H94.37872.22651.09802.12223.14202.96822.42323.00601.77084.78775.10454.6446
H104.37872.22651.09802.12223.14202.96823.00602.42321.77085.10454.78774.6446
H111.09704.03504.26723.19472.71412.14684.43174.77524.78775.10451.76981.7906
H121.09704.03504.26723.19472.71412.14684.77524.43175.10454.78771.76981.7906
H131.09204.40394.05862.63333.34782.13445.08095.08094.64464.64461.79061.7906

picture of Oxazole, 4,5-dihydro-2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C6 N4 126.635 C1 C6 O5 114.642
C2 C3 N4 104.923 C2 C3 H9 112.439
C2 C3 H10 112.439 C2 O5 C6 105.941
C3 C2 O5 103.726 C3 C2 H7 113.729
C3 C2 H8 113.729 C3 N4 C6 106.688
N4 C3 H9 109.770 N4 C3 H10 109.770
N4 C6 O5 118.723 O5 C2 H7 108.020
O5 C2 H8 108.020 C6 C1 H11 110.143
C6 C1 H12 110.143 C6 C1 H13 109.458
H7 C2 H8 109.197 H9 C3 H10 107.482
H11 C1 H12 107.534 H11 C1 H13 109.770
H12 C1 H13 109.770
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.633      
2 C -0.144      
3 C -0.315      
4 N -0.029      
5 O -0.239      
6 C 0.128      
7 H 0.165      
8 H 0.165      
9 H 0.169      
10 H 0.169      
11 H 0.184      
12 H 0.184      
13 H 0.197      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.887 -0.998 0.000 1.336
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.399 2.099 0.000
y 2.099 -29.754 0.000
z 0.000 0.000 -35.305
Traceless
 xyz
x -8.870 2.099 0.000
y 2.099 8.598 0.000
z 0.000 0.000 0.272
Polar
3z2-r20.543
x2-y2-11.645
xy2.099
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.137 0.749 0.000
y 0.749 9.715 0.000
z 0.000 0.000 6.259


<r2> (average value of r2) Å2
<r2> 124.697
(<r2>)1/2 11.167